Patent US3529772A successfully refreshed from Google Patents.
US3529772A
Expired / Lapsed
US
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Speed compensated sprinkler apparatus for water tank vehicles
Assignee: Southwest Welding and Manufacturing Co
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Filing: 1968-09-27
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Granted: 1970-09-22
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Expires: 1988-09-27
Abstract
No abstract record available.
Inventors
- 👤 Edward M Brodersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:10
CPC Classifications
B; B05; B05B; B05B9/00; B05B9/03; B05B9/04; B05B9/06; E; E01; E01C; E01C19/00; E01C19/12; E01C19/16; E01C19/17; E01C19/174; E01H; E01H3/00; E01H3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |